by G. Jeffrey MacDonald, Special for USA TODAY

by G. Jeffrey MacDonald, Special for USA TODAY

As of midday Monday, those being treated at Boston-area hospitals included:

â?¢ 48 patients, who were among the more than 170 people injured in the Boston Marathon bombings. Four died, including three killed in the bombing and an MIT police officer.

â?¢ Two patients in critical condition, including a 7-year-old girl with leg injuries at Boston Children's Hospital.

â?¢ 14 amputees, five of those at Boston Medical Center.

At St. Elizabeth's Medical Center, all bomb victims have been discharged, as have all 15 police officers who were treated for injuries sustained while helping pursue bombing suspects Thursday night and early Friday morning.